Cats have excellent hearing and can detect an extremely broad range of frequencies.

They can hear higher-pitched sounds than either dogs or humans, detecting frequencies from 55 Hz to 79,000 Hz, a range of 10.5 octaves, while humans and dogs both have ranges of about 9 octaves.

Cats can hear ultrasound, which is important in hunting[88] because many species of rodents make ultrasonic calls.

However, they do not communicate using ultrasound like rodents do. Cats' hearing is also sensitive and among the best of any mammal,[86] being most acute in the range of 500 Hz to 32 kHz.

This sensitivity is further enhanced by the cat's large movable outer ears (their pinnae), which both amplify sounds and help detect the direction of a noise.

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